The barrier layers of usual multiple-quantum-well laser diodes (MQW LDs) are designed such that the barriers are low and/or thin enough so that the injected carriers distribute uniformly across the wells. In contrast, asymmetric dual-quantum-well (ADQW) LDs are composed of two different wells separated by a barrier layer which is high and/or thick so that the quasi-thermal equilibrium between the two wells is violated, which results in a nonuniform carrier distribution.1–3

© 1991 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription